pg command

## pg - Property Graphs

Property graphs contain a list of node or edge declarations separated by `;`.

An example can be:

    (n1: Person { name: "Alice", age: 23 });
    (n2: Person & Student { name: "Bob" });
    (n3: Course { name: "Algebra" });
    [e1: (n1) -[ :knows { since: 2020 }]->(n2)];
    [e2: (n2)-[:knows { start: 2024, end: 2025 }]->(n3)]

Notice that node declarations are declared between parenthesis `(` and `)` while edge declarations are declared between square brackets `[` and `]`.

The full grammar is available here.